【单选题】反复多次用药后,机体对药物的敏感性降低称为
【简答题】某工厂某月有三种产品X、Y、Z需要生产。X产品的需求数为2000件,Y产品为1000件,Z产品为500件,它们都会用到A、B、C三种零部件,其需求见下表: 各产品零件构成 产品名称 A 零件 B 零件 C 零件 X 产品 10 2 3 Y 产品 3 5 2 Z 产品 3 10 5 请论述该怎么对其进行均衡化生产(设定每月工作日为20天),使得对零部件每天的生产负荷均衡化,并阐述零部件每天均衡化生产...
【简答题】Private cars are not allowed on the university grounds. __________
【单选题】The passage implies that public transport network can replace private cars if ______.
A.
the city is not so big
B.
there are more roads and streets
C.
there are more public transport tools
D.
there are more services near transport links
【单选题】某公司为了加强内部安全,装硬件防火墙,请问防火墙应该放在()
【单选题】Which of the following is NOT true according to the plan?
A.
Fares for all bus or tube journeys are to be fixed.
B.
Buses and taxis are allowed to go freely in the city.
C.
Enough parks should be built near the railway stations on the skirts of the city.
D.
All the private cars are not allowed to go into central London in the day time.
【单选题】听力原文:W: There are too many private cars on the road now, which causes traffic congestion and also pollution. I think the way to solve the problem is to improve our public transport--more buses, more r...
A.
Too many private cars.